Frontpage .htaccess Errors

We have a customer experiencing problems installing FrontPage.
When connecting it states "FrontPage security violation".

Searched the forums since yesterday and can't find much.
Anyone have any suggestions?

------- UNINSTALL -------

Starting uninstall, port: 80.

Error: There is no web named "".
The version (unknown) of the server extensions you are trying to uninstall cannot be uninstalled with this tool. You must upgrade this virtual server to the current version, and then use owsadm.exe to uninstall.

Checked the .htaccess and its correct, username:username
Checked in httpd.conf and that all seems fine, where else should I be checking to make sure its installing in public_html, and if not, how to force it to do so? Command Line?